The main street is also known as the “Colonnade Street”. There are pillars on the right and left sides of the street. It divides Hierapolis into two parts stretching in north and south directions. The main street is 1 mile in length and both in the north and south there are monumental gates. Hierapolis was built on grid (Hippodamos) plan so Colonnade Street intersects other roads at right angles.

Many ruins such as important public buildings, pantries, shops, houses belong to Roman era can be seen along the main street. On the other hand o small part of the Main Street lies under the water of the thermal Motel’s pool because of the earthquakes.